What is uranium 238 used for dating rocks

Most scientists and many Christians believe that the radiometric dating methods prove that the earth is 4.5 billion years old.

The textbooks speak of the radiometric dating techniques, and the dates themselves, as factual information.

It is possible to measure the ratio of the different radioactive parent isotopes and their daughter isotopes in a rock, but the ratios are not dates or ages.

The dates must be inferred based on assumptions about the ratios.

When someone mentions scientific dating methods, the first thing to come to mind for most people is carbon dating.However, there are many methods that can be used to determine the age of the earth or other objects.The textbooks focus on relative dating, based on the layering of the rocks, and radiometric dating.Uniformitarian geologists use so-called dating methods to determine the ages of the surrounding rocks.Certain types of rocks, especially those that form from magma (igneous), contain radioactive isotopes of different elements.